Paper-bag machine.



No. 722,986. PATENTED MAR. 17,1903.

0. s. JACKSON.

PAPER BAG MACHINE.

APPLICATION FILED AUG. 6, 1902.

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EJ Wue/Wboz Charles S. dizakson PATBNTED MAR. 17, 1903.

C, S. JACKSON. PAPER BAG MACHINE. APPLICATION I'ILBD AUG. 6, 1902.

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No. 722,986. PATENTED MAR. 17, 1903.

G. S. JACKSON.

PAPER BAG MACHINE. APBLIQA'TION FILED AUG. 6. 1902. 10 MODEL. a sums-suma.

2 FIG. 9.

' UNITE-D STATES PATENT OFFICE.

CHARLES s. JACKSON, OF FRANKLIN, OHIO.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 722,986, dated March17, 1903.

Application filed August 6. 1902. Serial No. 118.610. (No model.)

' To (1. whom it map concern; f Be it known that I, CHARLES S. JAoKsoN,a citizen of the United States,residing at Fran klin, in the county ofWarren and State of Ohio,

have invented certain new and useful Improvements in Paper-Bag Machines,of which the following is a specification.

The object of my invention is to provide a paper-bag machine which willautomatically insert a strawboard plate in the bottom .of the bag duringthe process of manufacture; and my invention consists in the combinationand arrangement of parts hereinafter described and claimed.

In the drawings, Figure I is an elevation of an apparatus for insertinga strawboard plate in the bottom of a bag, together with a diagrammaticrepresentation of so much of a paper-bag machine as cooperates with theapparatus; Fig. 2, an elevation of the clutch mechanism for operatingthe apparatus; Fig. 3, a section on line 3 3 of Fig. 2 Fig. 4., a topplan View of the apparatus; Fig. 5, an end view of the apparatus; Fig.6, an elevation showing the means by which the apparatus is driven; Fig.7, a top plan view showing the bag as it appears in the process ofmanufacture just before the strawboard plate is applied; Fig.

8, a top plan view of the bag and strawboard plate after the plate hasbeen applied and the first fold made, and Fig. 9 a top plan view showingthe completed bag.

Reference-letter A denotes the strawboard plate; B, a rackfor containingthe plates; 0, a feed-slide for delivering the plates; D, a rack-bar foroperating slide 0; E, a gear meshing with rack-bar D; E, a shaftcarrying gear D; F, a sprocket-Wheel for operating shaft E;

G, a chain operating sprocket-wheel F; H, a sprocket-Wheel operatingchain G; I, a rod; J, a crank for operating sprocket-wheel H;

K, the bags; L, the nose of the paper-bag machine; M and N,tucker-bladesforstarting the folds in the bag, and O and P foldingrollsof thebag-machine.

The plates A are placed in a pile in rack B, which is adjustable bothlengthwise and crosswise for the accommodation of different-sizedplates. An adjustable gate b is provided to permit the passage of thebottom plate and prevent the passage of the others. The sides I) of rackB are extended to form a channel for the plates A, and at its forwardend the rack is provided with an adjustable table b having a foldingextension b The slide 0 operates in guides c in thebottom of the rackand is provided with stops 0 and c for carrying the plates. The rack-barD is carried by slide 0 and meshes with gear E, carried by shaft E. As ameans for operating shaft E, I provide a sprocket-wheel F, looselymounted on shaft E and carrying a clutch member 6, engaging acorresponding clutch member 6, fixed to shaft E. A spring e holds clutchmembers 6 and e in. engagement. between the engaging surfaces of clutchmembers e and e, so that there will be a little lost motion at eachreversal of shaft E. In order. to obviate danger of-breakage byaccident, the engaging surfaces of clutch members e and e are beveled,so that they will disengage should too great resistance be placed uponthem. The sprocket-Wheel F is driven by sprocket-chain G, passing oversprocket H, which is operated through rod I by crank-arm J on shaftShaftj is driven by some suitable power, so as to cooperate with theother operations of the bag-machine,

shafts of the bag-machine extended for this purpose. The length ofcrank-arm Jis such thatit does not cause a complete rotation of tion.Thus it will be seen that the crankarm J will impart a reciprocatingmovement to slide 0, having a momentary pause at each reversal due tothe lost motion between clutch members e and e. In order to adjust themovement of slide 0, a turnbuckle i may be provided on rod I. At eachforward movement of slide 0 stop 0 engages the bottom plate A, carryingit under gate 1) and past dogs I), which falling behind it prevent itsreturn. On the backward movement of slide 0 stop 0 passes under plate Aand engages it upon the next forward movement to carry it forward ontotable 19 where owing to the pause of slide 0 at the reversal it ismomentarily held against nose L of the bag-machine. While the plate isin this position the usual tucker-blade M descends and, striking theedge of plate A projecting over table b tips the plate, so-that stops mon the blade en- A space 6 isleft and may, if desired, be one of theregularsprocket-wheel H, but merely a rocking mo gage it and carry itdown with the blade. In

order to accommodate dilferent sizes of plates, the stops m may be madeadjustable. The extension b is pivoted to table b and has a rodconnection with arm m on tuckerblade shaft m so that as the bladedescends, the extension is automatically Withdrawn and replaced when theblade ascends. The usual operations of the bag-machine bring the bag Kin the condition represented by Fig. 7, with paste applied along lines kis under nose L, and table 12 in proper position to be engaged by thedescending tucker-blade M along line 70, so as to start a fold on thisline. As the bag approaches this position its end has a tendency to curlup, and extension 5 prevents this. The tucker-blade M carries the foldin bag K and the inclosed plate A down into engagement with rolls 0,

which draw the bag through them, fold first. The rolls 0 apply thepaste-supplied portions of the bottom of bag K to opposite sides ofplate A,where they are held by the paste. After this operation the bagis in the condition represented by Fig. 8. As the bag continues itscourse it is struck by tucker-blade N along line 10 k and carried throughrolls P, completing the bag with the plate A in its bottom. The plate Ais preferably of strawboard or other more or less porous material, whichwill absorb superfluous moisture and prevent the paste from becomingmoldy or mildewed.

The tucker-blades M and N and rolls 0 and P are the usual parts of thewell-known paper-bag machine for forming and pasting the folds in thebottom of the bag, and their operation for this purpose will be readilyunderstood by those skilled in the art without further description. Myinvention consists in providing the means to cooperate with these parts,whereby the strawboard plates are automatically inserted in the bottom.

While I have shown and described the preferred form of application of myinvention, this is obviously capable of many variations withoutdeparting from the spirit of the invention. I therefore do not wish tobe limited to the exact form shown and described; but

What I claim as my invention is- 1. The combination, with thetucker-blade and folding-rolls of a bag-machine, of means for placing aplate in the path of the tuckerblade, to be engaged thereby and carriedto the rolls in the fold caused by the blade, substantially asspecified.

2. The combination, with the tucker-blade and folding-rolls of abag-machine, of a table located near the path of the tucker-blade; meansfor placing a plate on the table with its edge projecting into the pathof the tuckerblade; and means for carrying the plate inclosed in thefold into the folding-rolls, substantially as specified.

8. The combination, with the tucker-blade and follding-rolls of abag-machine, of a table located near the path of the tucker-blade; meansfor placing a plate on the table with its edge projecting into the pathof the tuckerblade; and a stop on the tucker-blade, adapted to engagethe uptilted edge of the plate and carry it to the folding-rolls,substantially as specified.

4. The combination in a bag-machine of a tucker-blade; folding-rollsadapted to cooperate with the tucker-blade to fold the bag; means forplacing a plate in the path of the tucker-blade to be engaged therebyand carried to the rolls in the fold caused by the blade; and a secondtucker-blade and pair of folding-rolls to complete the folding of thebottom of the bag, substantially as'specified.

5. In an apparatus for feeding plates to a bag-machine,the combinationof a rack adapted to contain a pile of plates; a gate adapted to permitthe passage of the bottom plate from the pile and to prevent the passageof the others; a slide adapted to engage the bottom plate of the pileand carry it to a bag-ma chine; and means for incorporating the plate inthe bottom of the bag, substantially as specified.

6. In an apparatus for feeding plates to a bag-machine,the combinationof a rack adapted to contain a pile of plates; a gate adapted to permitthe passage of the bottom plate from the'pile and to preventthe passageof the others; a slide mounted to reciprocate under the rack; a stop onthe slide, adapted to engage the bottom plate and carry it toward abag-machine; a dog adapted to engage the plate and prevent its return;and a second stop on the slide adapted to engage the plate and deliverit to the bag-machine, substantially as specified.

7. In an apparatus for feeding plates to a bag-machine, the combinationof rack B, provided with gate b and table 12 slide C, having stops 0 and0 dogs 6 rack-bar D on slide 0; gear E; shaft E; sprocket F; chain G;sprocket H; rod I; and crank J, substantially as specified.

8. In an apparatus for feeding plates to a bag-machine, the combinationof rack B, provided with gate b and table 12 slide 0, having stops 0 and0 dogs b rack-bar D on slide 0; gear E; shaft E; sprocket F clutchmembers 6 and e;spring 6 chain G; sprocket H; rod I; and crank J,substantially as specified. V

9. The combination, with the tucker-blade and folding-rolls of abag-machine, of a table located near the path of the tucker-blade; arack adapted to contain a pile of plates; a gate adapted to permit thepassage of the bottom plate of the pile and prevent the passage of theothers; and a slide adapted to engage the bottom plate of the pile andplace it on the table with its end projecting into the path of thetucker-blade, substantially as specified.

10. The combination, with the tucker-blade and folding-rolls of abag-machine, of a table located near the path of the tucker-blade; arack adapted to contain a pile of plates; a gate adapted to permit thepassage of the bottom plate of the pile and prevent the passage of theothers; a slide adapted to engage the bottom plate of the pile and placeit on the table with its end projecting into the path of thetucker-blade; and a stop on the tuckerblade adapted to engage the plateand carry it with the blade, substantially as specified.

11. The combination in a bag-machine of rack B, provided with gate 1)and table b slide 0, having stops 0 and 0 dogs b rackbar D on slide 0;gear E; shaft E; sprocketwheel F chain G; sprocket-wheel H; rod I;

CHARLES S. JACKSON.

Witnesses:

GEORGEB. PARKINSON, ,BRAYTON G. RICHARDS.

